Clear Quote by Leo Tolstoy

As the mind learns to understand more complicated combinations of ideas, simpler formulae soon reduce their complexity; so truths that were discovered only by…

— Nicolas de Caritat, marquis de Condorcet

A man may have intelligence enough to excel in a particular thing and lecture on it, and yet not have sense enough to know…

— Jean de la Bruyere

Many things which nature makes difficult become easy to the man who uses his brains.

— Hannibal

“Every man, knowing to the smallest detail all the complexity of the conditions surrounding him, involuntarily assumes that the complexity of these conditions and…

— Leo Tolstoy

A wise man thinks what is easy is difficult.

— John Churton Collins

“He who has not even a knowledge of common things is a brute among men. He who has an accurate knowledge of human concerns…

— Plotinus

Man is made for error; it enters his mind naturally, and he discovers a few truths only with the greatest effort.

— Frederick The Great

The most difficult thing is what is thought to be the simplest; to really see the things which are before your eyes.

— Johann Wolfgang von Goethe

The most difficult thing is to know what we do know, and what we do not know.

— P.D. Ouspensky

How very seldom do you encounter in the world a man of great abilities, acquirements, experience, who will unmask his mind, unbutton his brains,…

— Benjamin Disraeli

“A wise man does not give quick answers to complex questions – he observes, analyzes and contemplates.”

— Eraldo Banovac

He must be able to hear them [the counter arguments] from persons who actually believe them; who defend them in earnest, and do their…

— John Stuart Mill